The blonde beauty, 22, headed home after her dumping was aired on Friday and has now admitted she 'definitely thought she was going to get picked' by the bricklayer, 21.
She fumed she had become 'convinced he was the one' after he 'told her what she wanted to hear' during her time in the second villa designed to test the couples.
Oh dear: Dumped Love Island star Lillie Haynes has revealed her shock that Liam Reardon didn't bring her back from Casa Amor and says she felt 'misled' by the Welsh hunkInsurance Loans Mortgage Attorney Credit Lawyer
During Friday night's dramatic recoupling Liam returned to the main villa to reunite with former partner Millie, 24, despite having spent four days cracking on with Lillie, sleeping in a bed with her and kissing outside of challenges.
The trainee accountant from Newcastle told The Sun: 'When I found out Liam hadn't chosen me, I felt misled. He'd been giving me what I wanted to hear and I was convinced he was the one.
'He made me feel as if I had a really strong chance of going back to the villa with him. He was very hands-on — we were like a couple in there.
Close: The blonde beauty, 22, headed home after her dumping was aired on Friday and has now admitted she 'definitely thought she was going to get picked' by the bricklayer, 21
'So I definitely thought I was going to get picked. When he chose to go back alone, I was shocked.
'Then when I walked into the villa with the other girls, I didn't like how Liam had Millie's necklace and his arm around her after how he'd been with me.'
She added that it wouldn't have been nice of her to have let Millie carry on unaware of their fling to prevent her from 'being mugged off'.
Lillie added that she 'spoke up' so that Millie would 'put a question mark in her head' about Liam, before adding that the tradesman might not have told her the 'whole truth'.
Insurance Loans Mortgage Attorney Credit Lawyer
Shock: Millie was left in tears after Liam returned from Casa Amor alone to recouple with her - only for his disloyalty to soon be revealed
She continued, saying that she didn't reveal the news to be 'petty' but to encourage her to be 'wary'.
It comes after on Saturday Lillie's family pleaded with trolls to 'stop the hate,' after she revealed her fling with Liam in Casa Amor.
In a lengthy Instagram post to her account, the blonde's family threw their support behind her decision to break Millie's heart by announcing she shared a kiss with the hunk, insisting she 'hasn't behaved badly.'
The post went on to remind fans to 'be kind' and that they would be 'very naive' to think contestants solely take part in the show to find love.
Be kind: It comes after on Saturday Lillie's family pleaded with trolls to 'stop the hate,' after she revealed her fling with Liam in Casa Amor
Having taken over Lillie's social media during her Love Island tenure, her loved ones wrote: 'Great to see Lillie going into the villa and dropping the truth bomb.
'Our girl went into this experience hoping to find a connection with a guy who felt the same way but unfortunately she didn't find him.
'Just like every other islander Lillie was perfectly entitled to get to know